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Providing a four hole connection will result in the joint governing the strength of the overall beam. Therefore the capacity of the D78 beam will be reduced. Details of the reductions are shown in our technical information sheet TIS17001.
No. According to EN 12811-1, cl. 4.2.2.1, alloy tubes should not be connected to if their thickness is less than 4mm. The posts of the D78 beam are less than this. Full guidance on where to connect puncheons across our full beam range is shown in Beam User Guide USG001.
For standards of 48.3mm diameter, quick release pins AF0001 can be used. These pins are designed to suit a 12mm hole with 48.3mm outer diameter tube.
Yes. Care should be taken to pack and store the sheets following use. They should be inspected for damage, dried and pan folded with no sharp creases. We recommend they are stored in bags and inside.
Around 8-10 years, with a single job use of 2-3 years. We also offer a lightweight single use sheet and a heavy duty sheet for more onerous projects.
To TG9:20, the minimum advisable pitch for a monopitch roof is 10 degrees. We advise 15 degrees to avoid such issues as water ponding and deflections in tracking joints. Our DeepFlow™ tracking allows for roof pitches to be made shallower and has been proven on span pitched at 10 degrees.
Roller braces are not structural; however they are required for two main reasons:
• To assist sheeting installation by providing a rolling point at directional changes.
• To ensure the sheets are evenly tensioned.
Alloy tracking spigots are used as an installation aid ensuring adjacent lengths of track are secured to each other and to prevent separation and sliding.
The rollout method is the safest of the roof erection method as it allows the operators to erect the roof from a safe working platform (being a stepped gable end scaffold).
There is no certified course for temporary roofing. We offer specific product training and first-time site hand-holding to assist with product familiarisation and site applications.
